X c carl fickelscheer



Patented Feb. 7,189?.

c. rlcKl-:Lscnsm MIXING MGHINE (Appumin mad nu. 17, i697.)

(No mmap.)

Wz'nesses MM/f/z UNITED .STATES PATENT GFFICE.

CARL FICKELSCHEER, OF CASSEL, GERMANY.

MIXING-MACHINE.

SPECIFCATION forming-part of Letters Patent No. 619,018, dated February7, 1899.

Application filed March 17, 1897. Serial No. 628,033. (No model.)

T0 all whom it may concern.:

Be it known that I, CARL FICKELSCHEER, manufacturer, of 6 Tpfermarkt,Cassel, in the Kingdom of Prussia, German Empire, have invented new anduseful Improvements in Mixing-Machines, of which the following is aspecification.

This invention relates to a mixing-machine for cocoa, tea, coffee,succedaneum matter, clay, or other dry or moistmaterial in which thematerials to be mixed are moved to and fr0 upward and downward by apeculiar arrangement of the stirrers, so that with a comparatively smallnumber of stirrers an intimate mixture of the materials can be effected.

The accompanying sheet of drawings illustrates a mixing-machineconstructed in accordance with the invention, Figure l being asectionalelevation, Fig. 2 a sectional elevation taken on the line @c ofFig. 1 Fig. 3 a sectional view taken on line y y of Fig. 1, and Fig. 4 asectional View taken on the line z a of Fig. 2.

The cylindrical mixing vessel a has in its center a vertical shaft b,surrounded by a protecting=casing h and turning in a footstepbearing cin the bottom of the vessel and in a neck-bearing c in the cover a. Thesaid shaft may be driven by a belt-pulley d or by any other suitablemeans. Inside the vessel a are fixed at right angles to one another inthe sockets e' of a boss c, secured to the shaft b, four arms f, whichcarry the stirrers g. These stirrers are fixed by set-screws g atcertain distances from the shaft b. They are formed with obliquecorrugations so placed that those on the stirrers of one arm areinclined in a direction opposite to those of the stirrers on thepreceding and succeeding arms, as shown in Figs. 1 and 2. Every stirrertherefore acts in a direction opposite to that of the preceding one, sothat the material to be mixed is moved to and fro, upward by one stirrerand downward by the next following stirrer.

The peculiar form of the stirrers is produced by first forming them intospirals and then bending or curving them laterally, so as to produce theoblique corrugations above referred to, and this feature constitutes thechief element of my invention, and by means of thevspiral and wavy formof the stirrers the mass of material is thrown into four differentdireotionsinwardly, outwardly, upwardly, and downwardly-without the useof arms fixed and rotated in opposite directions, and the result is anintimate mixing of the material with a minimum amount lof force andpower and in the shortest possible time. By this arrangement itispossible witha com paratively small number of stirrers to effect anintimate mixture of the material and to reducethe power required todrive the machine as compared with mixing-machines at present in use.The section of the stirrers may be elliptic, with sharp edges, as shownin Figs. 3 and ,4; but it may be of any other suitable form.

The number of arms f may be varied according to circumstances.

Having now described my invention, what Iv claim, and desire to secureby Letters Patent, is-' l. A mixing-machine, comprising acasing, avertical shaft mounted therein, radial arms connected with said shaft,and vertically-arranged stirrers connected with said arms, said stirrersbeing spiral in form and provided with lateral corrugations orundulations, whereby the material to be mixed is moved upwardly anddownwardly and inwardly and outwardly, substantially as shown anddescribed.

2. A mixing-machine, comprising a casing, a vertical shaft mountedtherein, radial arms connected with said shaft, and vertically-arrangedstirrers connected with said arms, said stirrers being spiral in formand provided with lateral corrugations or undulations, whereby thematerial to be mixed is moved upwardly and downwardly and inwardly andoutwardly, the lateral corrugations or undulations on one of saidstirrers being arranged alternately with reference to those on theadjacent stirrer, substantially as shown and described.

3. A 1nixingn1achine, comprising a cylin drical casing, a vertical shaftmounted therein, and means for operating the same, said shaft being alsoprovided with radial arms,

and stirrers connected with said arms, said stirrers being arrangedvertically, and being spiral in form and provided with lateralundulations, substantially as shown and described.

4. A mixing-machine, comprising a cylindrical casing, a vertical shaftmounted therein, and means for operating the same, said shaftbeing alsoprovided with radial arms, stirrers connected with said arms, saidstirrers being arranged vertically, and being spiral in form andprovided with lateral undulations, the lateral undulations on saidstirrers being arranged alternately, substantially as shown anddescribed.

5. A mixing-machine, comprising a cylindrical casing, a vertical shaftmounted therein, and means for operating the same, said shaft being alsoprovided with radial arms, stirrers connected with said arms, saidstirrers being arranged vertically, and being spiral in form andprovided with lateral undulations, the lateral undulations on saidstirrers being arranged alternately, and said stirrers being providedWith an edge at their opposite sides, substantially as shown anddescribed.

6. A mixing-machine, comprising a cylindrical casing, a vertical shaftmounted therein, a supplemental easing inclosing said shaft, and radialarms connected with said shaft above said supplemental easing, saidradial arms being provided with vertically-arran ged stirrers which arespiral in form and provided with lateral undulations, substantially asshown and described. l

In testimony that I claim 4the foregoing as my invention I have signedmy name in presence of two subscribing Witnesses.

CARL FIOKELSCHEER.

Witnesses: V, HERMANN BRAUN, AUGUST THEW.-

